Twin food mixer



March 21, 1933. A. A. THEODOROPULOS 5 TWIN FOOD MIXER Filed April 18, 1932 INVENTOR 4129M: A. keaa'arapu/os Y ATTORNEY Patented '21, 1933 UNITED STATES PATENT OFFICE.

mama a. 'nmonoaorums, or nnw ironx. n. Y. I

i I 'rwnw roon MIXER.

Application filed. April 18,

The invention is a mixer comprising a base with a motor adjustably supported on anarm above the base and adapted to operate spindles having'mixing devices thereon.

The invention is an improvement over similar devices in that the operating spindles are solid so that the spur gears by which they are operatedmay be rigidly mounted and the mixing device may be rigidly held in sockets 1 in the ends of the spindles by friction. Other improvements will be noted as the construction is described.

The object of the invention is to provide a mixing device that is comparatively solid and that will last indefinitely without repair- Another object of the invention is to provide a mechanical mixer in which the mixin device may readily be removed and replace go Another object of the invention is to provide a mechanical mixer having mixin devices in which the .mixin devices are he din sockets having straight sides and arenot held by set-screws, or the like.

Another object of the invention is to. provide a mixi g V readily be ta en apart and also assembled.

device in which the parts may- Anotherobject of the invention is to provide a mixing device in which the spindles are '5 solid so that spur gears may be usedin combination with a worm for drivin A further ob'ect of the invention is to pro vide a mixing evice i5 which the mixing attachments may be inserted in either the upper 35 or lower part of the mixer head.

- And a still further object of the invention is to provide a mechanical mixer that is adapted for mixing eggs, whippin cream, squeezing oran es, and other 'si ar purposes which is o a comparatively simple and economical constructio With these ends in view the invention embodies a mixer having a base, 'a motor housing adjustably supportedjn a stand-above the said base, two spindles rotatably mounted in said motor housing'and ada be rotated by said motor, mixing evices adapted to be inserted in sockets in the ends of'said spindles, and suitable mixing bowlsand ap- P iances adaptedto be attached to said mixer;

1932. Serial Ho. 605,860.

Other featiires and advantages 'of the in- I the stand.

Figure 5. is a detail of one of; the spindles. Figure 6 is a view showing a mixing device.

Figure 7 'is a view showing the ,end of thespindle of the mixing device.

, Figure 8 is a planview of the base with the motor-stand removed.

In the drawing the device is shown as it.

would be made wherein numeral 1 indicates the base, numeral 2 the motor stand, and numeral 3 the motor housing or head.

- The base 1 may be made as shown iniFigures 3 and 8, with a flat plate havin an em larged section 4 at the rear upon w ich the stand 2rests and a socket 5 into which a a motor housing is mounted upon:

projection 6 on the stand 2 extends, so that y it forms a leg, as shown in Figure 2. An opening 7 is also provided in the section 4 thruwhich wires 8 maybe placed which will extend upward thru the stand 2 to the motor, and may be connected to any suitable source of electric current. At the opposite end of the base is another enlarged section 9 having asquare opening 10 therein to receive a square. stem 11 of a plate 12 that may be placed upon the base. This section is also provided with openings 13 stamped in the upper surface as shown, and'the platema be provided with openings 14, as shown in igure 8.- .The baselmay also be provided with legs 15 which ma be of any suitable shape and located in any suitable points.

The stand 2 is made of a rectangular shape,

as shown in Figure 3, and it is provided at the lower end with a base plate 16 that rests upon the base 1, and at the upper end is a yoke with ears 17 at the sides between which W the head 3 is pivotally mounted on a pin 18. At the lower side of the head 3 are extensions i 29 and may also 19, as shown in Figure 4, and between these extensions is a col ar 20 having an opening 21 therein, as shown in Figure 2, thru which the wires 8 may ass to the motor in the head 3. The stanh'2 may also have a projection 22 at the front in which is a set-screw 23 that engages the lower side of the head so that the head rests upon the-set-screw and.

the position thereof maybe adjusted b turning the set-screwupward or downwar o n the head 3 is a motor 24 which drives a worm 25 thru a shaft 26 and it will be noted that the worm 25 meshes with spur gears 27 that maybe used in the mixer is shown in Figure 6 and this is provided,with .a'trian lar shaped end 33 that fits snugly in the soc et 32 so that as it is pressed into place it will hold the attachment. A collar 34 may be placed upon the attachment shown in Figure 6, which is indicated by the numeral35, and

at the lower end of the attachment 35 is a ring I 36 which is mounted by holding the ends 8 thereof between the walls of the attachment which are square to correspond with the shape at t e 35 and a sleeve 37 The attachment is rovided with a recess 38 and the upper en s of the ring 36 may be forced and held into-the recess by a ridge 39 on the sleeve 37, and at theupper end of the sleeve is another 'rid e V 40 as shown. At the lower end of the attac ment 35 is a pin 41 which extends to the lower end of the member 36and may be ivotally mounted therein, as shown. ubs 42,

.or outline of the head, are provided lower side of the head .3 which form bearings for the lowenends of the spindles 28. These hubs may be made integralwith the head, as

shown in the Figure 1, or may be screwed into the head, as shown at the point 43 in Figure 2. These hubs may also have caps 44 which will fit over the lower ends, as shown in Figure 2, if desired. Plates 45 may be pivotally attached to'the top of the housing by pins 46 and positioned so that they may slide over the upper ends when the attachments at the top of the head are not in use.

Inthe design shown in Figure 1 a bowl 47 is shown positioned on topjof the head and this is provided with a locating finger 48 that fits into a notch 49 in the head to locate and hold the bowl in place. Another spindle 50 ma be provided which has triangular shaped ends 51 and 52 and this ma be mounted in a hub 53 in the bowl 47 wit the lower end extending into the socket '31 in the upper orange may be of the spindles 28' end extending into a socket 54 in a corrugated member 55 which may be used for squeezing oranges, or the like. It will be noted that the tating and as the orange is forced downward the juice will be removed and will drop into the bowl 47. The bowl 47 may be provided with a neck 56 and a rubber sto per 57 may be placed into the neck to hold t e juice 60 by which it may be held by hand.

A spout 61 may be provided which has slits 62 in the upper end that permit it to slide over a ridge 63 at the lower endof the neck 56 so that it ma readily be pressed into place and then turne to any position desired.

The devicemay be operated by a switch 64 which may be. located upon the base of the stand 2, as shown in Figures 1 and 2, however, it will be understood that any other means may be ,used for starting an stopping the motor.

It will be understood that other changes cut in half and one-half held' over the member 55 while the member is ro- .to hold the orange in place, and also a handle may be made in the construction without degarting from the spirit of the invention.

neof which changes may be in the shape or desi n of any of t e parts in t e use of other means for operating the spindles by the motor, another maybe in the another may be use of any other attachments or containers in combination with the device and still another may be in the use of any other means for connecting the attachments to the motor {at driviiig elements. 1

The construction will be readily understood from the foregoing description. Inuse the device may be prov ded as shownand it will-be noted that a bowl or other container,

as indicated by the numeral 65, may be placed uponthe plate 12and with the attachments 35 in pl'a'ce as shown in Figure I any product in the bowl-may readily be thoroughly mixed, It will be noted that only one of the attachments 35 may be used insteadof two and also that an other attachment may be a used in the spind e.

Theplate 12 is provided with a square stem 11, and this is held in the four-cornered hole 1.0 so that it will not rotate, and will therefore hold a bowl, or'the like, stationary while a substance or product therein is being mixed, thereby eliminating the necessity of. holding the bowl by hand.

Having thus fully describedthe invention what I claim as new and desire to secure by Letters Patent, is:

' '1. In a mixin described, a-hea a motor ins'aid head, a

machine of the character worm gear operated by said motor, A ur said spur gears are mounted, threa s holding said spur gears on' said spindles, 'set screws also holding said spur gears on said spindles a stand pivotally supporting said head, an a base in which said stand is freely mounted.

2. In a mixing machine of thecharacter described, a head, a motor in said head, a worm gear operated by said motor, spur gears meshing w1th said worm gear, spindles with solid central portions having'trian 15 sockets in their, ends gears are mounted, sai

upon said spindles, set screws locking the" spur gears on said. spindles, mixin attachlar shaped upon whfiih said spur spur gears screwed ments havin triangular shaped en s adapted to be hel in sai spindle sockets b fricand a base in which sai mounted.

3. Ina mixin machine of the character destan is freely scribed, a head, amotor in said head, a pinion operated by said motor, gears meshin with said pinion, spindles upon which sai gears are mounted, said spindles havin solid central port-ions with triangular s aped sockets in their upper and lower ends,-threads holdingvsaid gears on said spindles, means looking said gears onsaid threads, mixing attachments having triangular shaped ends adapted to be held in said spindle sockets by friction, a stand adjustably supporting said head, and abase in which said stand is freely mounted. A

4. In a mixing machine of the character described, a head, a motor in said head, a pinion operated by said motor, gears meshing with said pinion, spindles u on which sai gears are mounted,'said spind es havin solid central portions with triangular .s aped sockets in their upper and lower ends, threads holding said gears on said spindles, means locking said gears on said threads, mixing attachments havin triangular shaped ends adapted to be hel in sai spindle sockets by friction," and a stand adjustably supporting said head. .5. In a mixin machine of the character described, a hea a motor in said head, a pinion operated'by said motor, gears meshin said gears are mounted, said spin les havi solid central rtions withtriangular shape sockets inthe r upper and lower 'ends, threads holding said gears on said spindles, means locking said gears on said threads, mixing at-. tachments -having triangular shaped ends adapted to be held in said spindle sockets by friction, said attachments adapted to be. po-

sitioned above and below said head, a stand adiustably supporting saidhead, and a base in which said stand is freely mounted.

n which with said pinion, spindles u on which holding saidgearson said spindles, means locking said gears on said threads, mixing atlar shaped ends tachments havin trian adapted to be hel in'sai s indle sockets by friction, said attachments a apted to be pomtioned above'and below said head, a. stand 'adjustably pporting said head a base 1n -which said' stand is freely moimted, and 9c means enclosing the attachments positioned above said hea 7. In a mixing machine of the character I described, a head, a motor in said head, a

' pinion operated by saidmotor, gears meshin tion, a stand adjustably sup ortin sai head,

with saidpinion, spindles u n which'sai gears are mounted, said spin es havin solid central 7 portions with triangular s aped sockets in their upper and lower ends, threads holding said gears on said spindles, means lar shaped-ends adapted to be placed in the socket at the upper end of one of the spindlesto form an extension therefor, attachments adapted to be placed at the upper end of said auxiliary spindle, a housing adapted 9 g central portions with triangular s aped sockets intheir upper and lower ends, threads to be placed on top of said head to, enclose the attachments on said auxiliar spindle, a stand adjustably supporting sai head, and a base in which said stand is freely mounted.

81 In a mixing machine of the, character described, a head, a motor in said head, a pin? ion operatdi by said motor, gears meshing with said pinion, spindles upon which said gears are mounted, said spindles havin solid central portions with triangular aped sockets in their ends, threads holding said no gears on said spindles, set screws also holding said gearson said spindles, said head having a compartment inwhich said gears and pinion arepositioned, a removable cover'for said u 5 compartment providing access to said gears and pinion, a stand pivotally supporting said head, and a base in which said stand is freely mounted.

9. In a mixing machine of the character described, a head, a motor in said head,*a pinion operated by said motor, gears meshing with said pinion, spindlesjupon which sai gears are-mounted',sa id spindleshavin solid central portions with triangular," s aped.1 23

sockets in their ends, threads holding said gears onsaid spindles, set screws also holding said gears on said spindles, said head having a compartment in which saidgears and pinion are positioned, a removablecove'r for 18 said com artment providing access to said gears an pinion, a sband pivotally su portm saidhead ad ustable means on sai stand ho ding said ilead in position, anda base in 5 which said stand is freel mounted.

.In testimony whereof aflix my signature.

. ARISTEDE A. THEODOROPULOS. 

